SEG 25 Metric Series

Two solid section rings separated by a 25mm ball set, with the outer ring being geared. This series has a constant height of 63mm, and a standard range of external diameters ranging from 855mm to 1555mm.

Overview

Dimensions

Technical

Downloads

All QCB® slewing rings are manufactured to the highest possible quality levels in ISO certified factories. A QCB® Quality Standard defines all aspects of their dimensions and tolerances as well as all aspects of manufacturing from materials properties, all stages of production, as well as packing and labelling.

Whilst the data on the site is updated regularly, we reserve the right to implement subtle changes to these standards in our quest for continual product improvement.

Applications

Industrial positioners (e.g. welding assemblies and jigs)

Ship or truck loading chutes and swivels

Stretch wrapping machines

Conveyors and other materials handling equipment

Simple amusement rides

Need help?

Our technical team have many years of experience and are happy to assist with selection. Call or e-mail them for fast, efficient and professional advice.

The Design Form will assist you in defining your application details.

QCB reference

Outline dimensions & weight

Da

Di

U

C

Ua

di

Load curve

Weight

mm

mm

mm

mm

mm

mm

kg

SEG 900 25 01 AA LM

898

655

753

757

755

657

38

128

SEG 1000 25 01 AA LM

997

755

853

857

855

757

29

145

SEG 1100 25 01 AA LM

1096

855

953

957

955

857

30

155

SEG 1200 25 01 AA LM

1198

955

1053

1057

1055

957

31

171

SEG 1300 25 01 AA LM

1298

1055

1153

1157

1155

1057

32

190

SEG 1400 25 01 AA LM

1398

1155

1253

1257

1255

1157

33

204

SEG 1500 25 01 AA LM

1498

1255

1353

1357

1355

1257

34

222

SEG 1600 25 01 AA LM

1598

1355

1453

1457

1455

1357

35

236

QCB reference

Outer holes

Inner holes

20o stub gear

La

na

Li

ni

P

M

z

Fz MAX

mm

mm

mm

KN

SEG 900 25 01 AA LM

816

24

695

24

882

9

98

82

SEG 1000 25 01 AA LM

916

28

795

28

981

9

109

82

SEG 1100 25 01 AA LM

1016

30

895

30

1080

9

120

82

SEG 1200 25 01 AA LM

1116

30

995

30

1180

10

118

90

SEG 1300 25 01 AA LM

1216

36

1095

36

1280

10

128

91

SEG 1400 25 01 AA LM

1316

42

1195

42

1380

10

138

91

SEG 1500 25 01 AA LM

1416

42

1295

42

1480

10

148

91

SEG 1600 25 01 AA LM

1516

48

1395

48

1580

10

158

91

Standard grease fitting

# at least 4x M8 on inner ring

Interchange information

The SEG25 Series is interchangeable with bearings from other manufacturers such as Roth Erde, Torriani Gianni, INA, Schaeffler, SKF, RKS, RIMA, La Leonessa and many more. However there may be variations to this rule (e.g. OEM variants) and we invite you to refer to our technical staff for assistance.

00 Type without pilot diameter

SEG 900 25 00 AA

VSA 25 0755 N

SEG 1000 25 00 AA

VSA 25 0855 N

SEG 1100 25 00 AA

VSA 25 0955 N

SEG 1200 25 00 AA

VSA 25 1055 N

SEG 1300 25 00 AA

SEG 1400 25 00 AA

SEG 1500 25 00 AA

SEG 1600 25 00 AA

01 Type with pilot diameter

SEG 900 25 01 AA

VSA 25 0755 N ZT

E 900 25 00 B

111.25.0755.00.00.10

SEG 1000 25 01 AA

VSA 25 0855 N ZT

E 1000 25 00 B

111.25.0855.00.00.10

SEG 1100 25 01 AA

VSA 25 0955 N ZT

E 1100 25 00 B

111.25.0955.00.00.10

SEG 1200 25 01 AA

VSA 25 1055 N ZT

E 1200 25 00 B

111.25.1055.00.00.10

SEG 1300 25 01 AA

111.25.1155.00.00.10

SEG 1400 25 01 AA

111.25.1255.00.00.10

SEG 1500 25 01 AA

111.25.1355.00.00.10

SEG 1600 25 01 AA

111.25.1455.00.00.10

Custom designs

Double drilled or custom drilling patterns

Higher precision bearings with location diameters

Reduced internal clearance (Class 5 & Class 6)

Black oxide or zinc plating for enhanced corrosion protection

Epoxy paint or even Nylon coated units to special order

Stainless steel or aluminium versions

Materials

From 2015 all SEG25 Metric Series slewing rings will be manufactured in 42CrMo4 steel. Smaller units are usually produced in 50Mn / C45.

Internal construction

Standard SEG25 Series bearings incorporate plastic spacers, but ball spacers, steel or brass spacers, or even full complement and caged designs can be supplied for specific applications.

Seals

A land riding NBR (nitrile rubber) seal strip is standard. VITON seals can be supplied to order.

Gearing

The SEG25 Metric series has a standard 20° pressure angle, uncorrected spur gear cut into the outer ring.

Lubrication

QCB® Slewing rings are assembled with a small quantity of Lithium EP2 grease. It is important that all slewing rings are greased during installation and prior to operation. SEG25Metric Series slewing rings will usually have 4 or 6 grease nipples DIN 71412 M8x1 on the radial face of the inner ring. Sufficient grease nipples for all holes as well as Nylon plugs (to insert if a grease nipple is not required) are supplied with each ring.

Special greases can be supplied on demand as can GreaseMax Automatic Lubricators and Accessories.

Load & Bolt limit curves

If both a radial and an axial load act on the bearing these must be combines into a single equivalent load to enable basic selection from the load curves. The raceway limit is illustrated by the blue line, the red line illustrates the limit for the specified number of Grade 8.8 bolts.The load point should be well under the relevant load curve for long life.

Grade 10.9 bolts can be used but only after approval by our technical team.

Similarly if the load is suspended or the axis of rotation is not vertical please refer the application details to us and take advantage of our decades of experience!